231320102 has 12 divisors (see below), whose sum is σ = 375724620. Its totient is φ = 106762968.

The previous prime is 231320101. The next prime is 231320107. The reversal of 231320102 is 201023132.

It is a happy number.

231320102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231320101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341852 + ... + 342527.

It is an arithmetic number, because the mean of its divisors is an integer number (31310385).

Almost surely, 2^231320102 is an apocalyptic number.

231320102 is a deficient number, since it is larger than the sum of its proper divisors (144404518).

231320102 is a wasteful number, since it uses less digits than its factorization.

231320102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684407 (or 684394 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 231320102 is about 15209.2110906516. The cubic root of 231320102 is about 613.8625300998.

Adding to 231320102 its reverse (201023132), we get a palindrome (432343234).

The spelling of 231320102 in words is "two hundred thirty-one million, three hundred twenty thousand, one hundred two".